GridView导出为Excel对于很多人来说都是比较常用的方法，而且网络上也有一些比较多的方法，但是这些方法多数都是需要在服务器端安装excel或相关的.dll。可是我们最近做的程序，服务器上居然不让安装，那就有点郁闷了，最后花了点时间终于找到了可用的方法，现在和大家分享一下。

      实现的基本思想是通过ODBC中的Microsofe Excel Driver先将GridView中的数据读取出来生成一个.xls的临时文件在服务器端，然后再将该文件的内容读取到换从中，接着用Response的方法提示用户下载到本机的指定位置上。

    以下是实现的具体代码，供参看（测试通过的代码）：

    /// <summary> /// 在磁盘上创建一个临时的excel文件 /// </summary> private void CreateExcelFile(string filePath) { if (File.Exists(filePath)) { File.Delete(filePath); } OleDbConnection oleDbConn = new OleDbConnection(); OleDbCommand oleDbCmd = new OleDbCommand(); string sSql = ""; try { //设置导出所有数据 gvShowInfo.AllowPaging = false; //清除分页 gvShowInfo.AllowSorting = false; //清除排序 this.gvShowInfo.DataBind(); //打开Microsoft.Jet.OleDb.4.0连接 oleDbConn.ConnectionString = "Provider=Microsoft.Jet.OleDb.4.0;Data Source=" + filePath + @";Extended ProPerties=""Excel 8.0;HDR=Yes;"""; oleDbConn.Open(); oleDbCmd.CommandType = CommandType.Text; oleDbCmd.Connection = oleDbConn; //写列名 sSql = "CREATE TABLE sheet1("; for (int i = 0; i < this.gvShowInfo.Columns.Count; i++) { if (i < this.gvShowInfo.Columns.Count - 1) { sSql += this.gvShowInfo.Columns[i].HeaderText + " Text(100),"; } else { sSql += this.gvShowInfo.Columns[i].HeaderText + " Text(200))"; } } oleDbCmd.CommandText = sSql; oleDbCmd.ExecuteNonQuery(); //写行数据 for (int j = 0; j < this.gvShowInfo.Rows.Count; j++) { sSql = "INSERT INTO sheet1 VALUES('"; for (int i = 0; i < gvShowInfo.Columns.Count; i++) { if (i < gvShowInfo.Columns.Count - 1) sSql += gvShowInfo.Rows[j].Cells[i].Text + " ','"; else try { sSql += ((System.Web.UI.WebControls.Label)gvShowInfo.Rows[j].FindControl("lblType")).Text + " ')"; } catch { sSql += "" + " ')"; } } oleDbCmd.CommandText = sSql; oleDbCmd.ExecuteNonQuery(); } //恢复到原来的页面显示方式 gvShowInfo.AllowSorting = true; //恢复分页 gvShowInfo.AllowPaging = true; //恢复排序 this.gvShowInfo.DataBind(); //再次绑定 } catch (System.Exception ex) { throw ex; } finally { //断开连接 oleDbCmd.Dispose(); oleDbConn.Close(); oleDbConn.Dispose(); } } /// <summary> /// 数据导出 /// </summary> private void ImportExcel() { try { //随机文件名 string FileName = "temp//" + DateTime.Now.ToString("yyyyMMddHHmmss") + new Random().Next(9999) + ".xls"; //临时文件路径 string filePath = this.Request.PhysicalApplicationPath + FileName; //创建临时文件 CreateExcelFile(filePath); using (FileStream fs = new FileStream(filePath, FileMode.OpenOrCreate)) { //让用户输入下载的本地地址 Response.Clear(); Response.Buffer = true; Response.Charset = "GB2312"; Response.AppendHeader("Content-Disposition", "attachment;filename=MonitorResult.xls"); Response.ContentEncoding = System.Text.Encoding.GetEncoding("GB2312"); Response.ContentType = "application/ms-excel"; // 读取excel数据到内存 byte[] buffer = new byte[fs.Length - 1]; fs.Read(buffer, 0, (int)fs.Length - 1); // 写到aspx页面 Response.BinaryWrite(buffer); Response.Flush(); this.ApplicationInstance.CompleteRequest(); //停止页的执行 fs.Close(); fs.Dispose(); //删除临时文件 File.Delete(filePath); MsgLabel1.Alert = "导出EXCE成功！"; } } catch (Exception ex) { MsgLabel1.Alert = "导出EXCE失败:" + ex.Message; } }